Radiator



0. w. OWSTON Jan. 5 1926.

RADIATOR Filed July 14, 1924 Patented Jan. 5, 1926.

UNITED STATES 1,568,526 PATENT OFFICE.

CHARLES WM. OWSTON, OF DETROIT, MICHIGAN, ABSIGNOB TO MUCORD RADIATOR &MIG. 00., O! DETROIT, MICHIGAN, A CORPORATION OF MAINE.

RADIATOR.

Application filed July 14, 1924.. Serial No. 725,799.

To all whom it may concern: a

Be it known that I, CHARLns WM. O ws'roN, a citizen of the UnitedStates, reading at Detroit, in the county of Wayne and State ofMichigan, have invented new and useful Improvements in Radiators, ofwhich he following is .a specification. v

This invention relates to radiators for automobiles and other motorvehicles and has particular reference to the manner of providing anopening in one of the walls of the upper tank for passage of theover-flow or vent tube.

In the accompan ing drawings Fig. 1 is a rear e evational view of aradiator embodying the features of my invention'; I v Fig. 2- is afragmentary perspective view of the upper tank, showing the tube open-111 Fig. 3 is an enlarged sectional view through the walls of the tankat the-opening, on line 3-3 of Fig. 2; and

Fig. 4 is asectional view on line 4-4 of Fi 3.

The radiator shown in thedrawings has an outside casing or shell 1containing a core The core may be of the fin and tube or of thecellulartype and has upper and lower water tanks 3, 4. Belting stri s 5 arecarried at the sides of the core an are secured to the shell forsuspending the core therein.

The vent tube 6 is at the rear of the radiator and has its upperortionextending into the top tank 3 throug one of its walls. In theparticular type of radiator shown, the tube extends obllquely throughthe rear wall 7 of said tank between one end of the tank and its waterjacket hose fittin 8. The

opening in said wall for the tube, in accordtank is bent inward, whilethe metal ortion 7" on the opposite side of the slit is ntoutward, asshown in Fig. 3. These portions are also given a curvature conforming tothat of the tube 6 and provide an open- Moreover, in making the openingin this manner, the actual opening in the plane of the slit approximatesthe diameter of the tube and is one which bears substantiallycontinuously around the entire circumference of the tube so that packing(Li-the ea s, as

opening with 'solde'r to prevent heretofore, is avoided. The edges ofthis opening being in a plane transverse to the portion of the. tubeextending therethrough allows for this continuous contact, as shown inFig. 4.

With the tube 1 in close to or against the tank wall 7 an tfien gointhrough it obliquely, the elliptical or rat er elongated oval openingheretofore made in said wall did not have all around contact with thetube. This made gaps between the tube and the edges of the opening, withthe result that v packing of the opening around the tube with solder wasrequired tosecure a water ti ht joint. With my invention, there is a reatively large bearing area of tank wall for theiube, not only (providinga support for the tube but provi ing a proper and tight o1ut.

Following the customary ractice, the upper end of the tube 6 exten sinto the filler neck 9, of the radiator, "a shown in dotted linesin Fig.1 'to'beabove the water level.- The lower en core and directstheoverflow downward, as shown'.

I claim as my invention: -1. In a radiator, the combination of a tankand an overflow tube extending there- I through, the tank having onewall rovided with a slit and the metal portions o thewall on op ositesides of the slit being respectively bent inwardly-and outwardly fromthe or the 60 of the tube is outside the 5 plane of the wall toconjointly form an opening for receiving said overflow tube, and opposedbearing surfaces for the said tube, the diameter of the opening beingsubstan-. tially ual'tojthe outside diameter of the tube an the bentortio s. h

metal adjacent the opening extending in parallel planes at an angleinclined to the plane of the wall.

2. In a radiator, the combination of a tank and an overflow tubeextending therethrough, the tank having one wall provided with a slitand the metal portions of the wall on opposite sides of the slit beinrespectively bent inwardly and outward y from the plane of the wall toconjointly form an opening for receiving said overflow tube, and opposedbearin surface for said tube, the diameter of t e opening beingsubstantially equal to the outside diameter of the tube and the bentbearing portions of the metal adjacent the opening extending in arallelplanes at an angle inclined to the p ane of the wall, said bent bearinportions of the wall being curved to snug y fit the tube on oppositsides thereof throughout the lengths of said portions.

3. In a radiator for motor vehicles, the combination of a core having atank, and a vent tube having a portion extending into the tank obliquelythrough one of the walls thereof, said wall having an opening for thetube to pass through, said opening being formed to have its edges in aplane transverse to the tube portion extending there- 'through andhaving substantially continuous contact with the tube all around thesame, said wall having tube bearing surfaces on opposite sides of'saidopening.

4. In a radiator for motor vehicles, the combination of a-core having atank, and a vent tube having a portion extending into the tank obliquelythrough one of the walls thereof, said wall having its vent tube openingformedby slitting the tank wall and then pressing the wallp'ortions onopposite sides of said slit out of the plane of the wall and in oppositedirections to provide relatively wide bearing surfaces for the tube andcause the vent opening to fit all about the tube.

In testimony that I claim the foregoing as my invention, I aflix mysignature this 28th day of June, 1924.

CHARLES WM. OWSTON.

